body {
    margin: 0;
    font-family: Arial, sans-serif;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #fff;
    padding: 10px 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-logo {
    display: flex;
    align-items: center;
}

.navbar-logo img {
    height: 40px;
    margin-right: 10px;
}

.navbar-menu {
    display: flex;
    gap: 60px;
}

.navbar-menu a {
    text-decoration: none;
    color: #333;
    font-size: 20px;
    transition: color 0.3s, text-decoration 0.3s;
    position: relative;
}

.navbar-menu a::after {
    content: ''; /* 下划线的内容为空 */
    position: absolute;
    bottom: -2px; /* 下划线的位置 */
    left: 0;
    width: 0; /* 初始宽度为 0 */
    height: 2px; /* 下划线高度 */
    background-color: #4CAF50; /* 下划线颜色 */
    transition: width 0.3s; /* 动画效果 */
}

.navbar-menu a:hover {
    color: #4CAF50;
}

.navbar-menu a:hover::after {
    width: 100%; /* 悬停时下划线扩展到整个文字 */
}

.language-switch {
    display: flex;
    align-items: center;
    gap: 10px;
}

.language-switch img {
    height: 20px;
    width: auto;
}

.language-switch select {
    border: none;
    background: none;
    font-size: 18px;
    cursor: pointer;
}

.language-switch select:focus {
    outline: none;
}








 /* 容器样式 */
 .box { 
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
    height: 400px;
    background-color: #f4f4f4;
    overflow: hidden; /* 隐藏超出容器的部分 */
}



/* 图片样式 */
.center-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

/* 左右箭头样式 */
.arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    line-height: 40px;
    cursor: pointer;
    user-select: none;
    border-radius: 50%;
}

.arrow.left {
    left: 10px;
}

.arrow.right {
    right: 10px;
}

.arrow:hover {
    background-color: rgba(0, 0, 0, 0.7);
}









.service-features {
    text-align: center;
    padding: 50px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.service-features h1 {
    color: #4CAF50;
    font-size: 36px;
    margin-bottom: 10px;
}

.service-features p {
    color: #333;
    font-size: 18px;
    margin-bottom: 30px;
}

.service-features p.subtitle {
    font-family: 'Roboto Mono', monospace; /* 设置等宽字体 */
    letter-spacing: 2px; /* 字母间距 */
    font-size: 24px; /* 字体大小 */
    font-weight: normal; /* 字体粗细 */
    color: #666; /* 字体颜色 */
}

.feature-cards {
    display: flex;
    justify-content: center;
    align-items: stretch;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 150px;
    margin: 0 10px;
    padding: 20px;
    text-align: center;
    flex-shrink: 0; /* 防止卡片缩小 */
}

.card h2 {
    color: #4CAF50;
    font-size: 24px;
    margin-bottom: 10px;
}

.card p {
    color: #333;
    font-size: 14px;
    line-height: 1.5;
}









.video-case-title {
    text-align: center;
    margin: 40px 0;
}

.video-case-title h1 {
    font-size: 36px;
    font-weight: bold;
    color: #4CAF50;
}

.video-case-title span {
    font-size: 18px;
    color: #888;
}

/* 新闻内容部分 */
.news-case {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px;
    flex-wrap: wrap;
}

/* 新闻卡片样式 */
.news-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 300px;
    padding: 20px;
    text-align: center;
    cursor: pointer; /* 使卡片可点击 */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: scale(1.05); /* 增加缩放效果 */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); /* 增强阴影 */
}

.news-card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 10px;
}

.news-card h2 {
    color: #4CAF50;
    font-size: 20px;
    margin-bottom: 10px;
}

.news-card p {
    color: #333;
    font-size: 14px;
    line-height: 1.5;
}

/* 点击按钮样式 */
.cta {
    text-align: center;
    margin-top: 30px;
}

.cta-button {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 12px 30px;
    font-size: 18px;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #45a049;
}















body {
    font-family: Arial, sans-serif;
    background-color: #f7f7f7;
    color: #333;
    margin: 0;
    padding: 0;
}

.container {
    width: 80%;
    margin: 0 auto;
    text-align: center;
    padding: 20px;
}

.header {
    margin-bottom: 20px;
}

.header img {
    width: 50px;
    vertical-align: middle;
    margin-right: 10px;
}

.header h1 {
    display: inline-block;
    vertical-align: middle;
}

.contact-info {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0, 0.1);
}

.contact-methods {
    margin-top: 10px;
}

.contact-methods ul {
    list-style-type: none;
    padding: 0;
}

.contact-methods li {
    margin: 5px 0;
}

